Simple Machines and Complex Machines

Simple machine

Is a tool that helps us to work more easily and quickly

Types of simple machines

Wheel and axle, lever , screw, gear, pulley, inclined planes & wedge

Wheel and axle

Is a tool that consists of a wheel fixed on a rod called an axle

Screw

Is a grooved cylindrical tool that can be inserted into objects by rotating it to unite or tighten two parts of an object

Gear

Is a tool that consists of jogged wheels

Pulley

A tool that consists of a wheel with a groove that allows a rope to pass through it to lift or lower a load

Inclined planes

Is a tilted flat surface that has one of its ends at a different height

Wedge

Is a tool that has one pointed end and is used to cut, hold, and stop an object

Complex machine

A tool that consist of a combination of more than one simple machine

Sustainable complex machine

Are machines that have sustainable characteristic such as durability, not easily damaged, profitable, do not harm the environment, easy and safe to use

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Simple Machines and Complex Machines

Simple Machines and Complex Machines